PubMed Central Update Mark R. Desierto MLA Conference May 2007.

PubMed Central Update

Mark R. DesiertoMLA Conference

May 2007

What is PubMed Central?

• PubMed Central (PMC) is the U.S. National Library of Medicine's digital archive of biomedical and life sciences journal literature

• A logical extension of NLM’s general mandate

• Free and unrestricted access

• Integrate the literature with other valuable information resources in the NCBI database family (e.g., PubMed, Nucleotide, Protein)

• Digitize journal back issues to create a full electronic record of a journal

• Launched in February 2000

Can you tell me how to get to PMC?

http://www.pubmedcentral.nih.gov/

Can you tell me how to get to PMC?

Via www.pubmed.gov

Can you tell me how to get to PMC?

Banner in AbstractPlus

Can you tell me how to get to PMC?

Via PubMed filters

What’s in PMC?

MLA 2006:

250 journals

600,000 articles

7.65m article retrievals in April 2006

MLA 2007:

325 journals

960,000 articles

9.5m article retrievals in April 2007

What’s in PMC?

300,000New & recent electronic content

Author manuscripts(NIHMS, Wellcome Trust, Inserm)

+ 650,000Scanned from print(Back Issue Digitization Project)

+ 7,000

~960,000 articles

What’s in PMC?

300,000 articlesNew & recent electronic content

Publisher agrees to provide

•Full-text XML

•High-resolution (“print”) PDFs

•Original high-resolution images

•Supplementary material

XML preferred for archiving

•Technology-independent and portable

•Allows for richer linking and automated text analysis

What’s in PMC?

650,000 articlesBack Issue Digitization Project

•Print journals scanned “cover to cover” (from earliest volume)

•Create and archive high resolution PDFs with true reproduction of figures/images

•OCR text used to do full-text searching and build list of linked reference citations

What’s in PMC?

•Formal agreement between NLM and publisher

•Journal may delay free access up to a year or more

•Copyright is retained by publisher or author

•Publisher may designate journal (or certain articles) as open access

•Deposits are permanent: journal may stop depositing new content but may not withdraw content already deposited in PMC

To Join PMC . . .

Joined PMC in 2006/07

Completed Back Scanning Archive in 2006/07

•Earliest volume: 1885

•Earliest volume: 1912

•Earliest volume: 1878

OA Titles Joining PMC 2006/07

Open Access “Feeds”

"Blackwell Online Open"[JOUR]Blackwell Online Open

"Springer Open Choice Articles"[JOUR]Springer OpenChoice Articles

Oxford University Press “OxfordOpen”

Coming soon

Finding NCBI Related Records

Tables and Images in Context

Image Viewer

Image Color AccuracyPrint

Old

New

PMC Help on Bookshelf

Part of NCBI Help Manual

PMC News RSS Feed

http://www.ncbi.nlm.nih.gov/feed/rss.cgi?ChanKey=pmcnews

UK PubMed Central (UKPMC)

http://ukpmc.ac.uk/

UK PubMed Central (UKPMC)

•Flagship PMC International (PMCI) site

•Also working with publishers and organizations in Italy (Italian National Research Council), South Africa (National Bioinformatics Network), China, and Japan.

Coming soon: Improved Limits

Coming soon: Projected for Back Scanning

Completion in 2007

Contact Us

PubMed Central:http://

www.pubmedcentral.nih.gov

Questions about PMC?:[email protected]